/* Web Tint — visual filter overlays. */
#wta-tint-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2147483647;
    transition: opacity 0.3s ease;
}

#wta-tint-overlay[data-mode='night'] {
    mix-blend-mode: multiply;
}

#wta-tint-overlay[data-mode='custom'] {
    mix-blend-mode: multiply;
}

/* Grayscale / contrast / invert use CSS filters on the root element. */
html.wta-tint-grayscale {
    filter: grayscale(1) !important;
}

html.wta-tint-grayscale img,
html.wta-tint-grayscale video,
html.wta-tint-grayscale canvas,
html.wta-tint-grayscale iframe {
    filter: grayscale(0) !important;
}

html.wta-tint-invert {
    filter: invert(1) hue-rotate(180deg) !important;
}

html.wta-tint-invert img,
html.wta-tint-invert video,
html.wta-tint-invert canvas,
html.wta-tint-invert iframe {
    filter: invert(1) hue-rotate(180deg) !important;
}